對MySQL/PHP報告有挑戰性的MySQL查詢

Question

對於一個好的MySQL編碼器來說，這是一個挑戰。 我們將非常感謝一個查詢創建一個HTML/PHP頁面中顯示的MySQL報告的幫助。

我們知道如何收集數據並存儲它，並且擁有PHP報表佈局，但是如何構造查詢卻丟失了。

我們有兩個MySQL表 - 「訪問者」和「買家」。

1. 參觀者表 - 爲遊客到我們的網站，通過該標識SALES_REP和他們自己創建許多 營銷代碼一個 特定的URL來英寸
2. 買家表 - 爲那些買東西的人。

訪問者可以通過下面的鏈接訪問我們的網站，例如：

www.sales_rep.website.com/index.php?marketing=code1/code2/code3 

在 「遊客」 表中，我們包括三個領域：

• SALES_REP
• 日期
• marketing_CODE - （在這種情況下，它將是字符串中的「code1/code2/code3」，但每個sales_rep可能有多個基於其廣告活動的marketing_CODES;例如「code1a/codeTX/codeM2」和「mark ET-Z /廣告-123" ）

當訪問者購買的東西，我們將它們添加到 「買方」 表，其中包括：

• SALES_REP
• 日期
• marketing_TYPE - （它可以是 「URL」， 「推薦」，或一些其他類型）
• marketing_VALUE - （它將如果marketing_TYPE是URL的marketing_CODE）

我們需要看到每個特定銷售代表的報告，對於任何指定月份，按市場代碼排序，僅針對marketing_TYPE ==「URL」。

此報告需要顯示每個marketing_CODE觀衆和買家的活動爲期一週的逐周細目如下：

爲了保證清晰度，在上表中，在第1周， 8訪客通過「code1/code2 /」鏈接進入該網站，其中5人購買了一些東西。

我們已經嘗試開始我們的查詢與以下，但不知道去哪裏吧：

1. $chosen_month = $_POST['chosen_month'];
2. SELECT * FROM visitors INNER JOIN buyers ON sales_rep WHERE marketing_type = "URL" AND sales_rep = '$sales_rep' AND date('Y-m') = $'chosen_month' ;
3. 使用while語句，我們將生成查找每個記錄的表格單元格。使用這種方法，我們知道如何列出每條記錄，但我們無法弄清楚如何顯示非獨特記錄一次，顯示它們的計數，然後顯示不同的記錄。

謝謝你的時間和幫助。

Answer 1

這是我對你的查詢的建議。

首先，我需要根據日期字段，找出週數，所以我用在this question答案：

SELECT WEEK(dateField, 5) - 
     WEEK(DATE_SUB(dateField, INTERVAL DAYOFMONTH(dateField) - 1 DAY), 5) + 1 

我指的是上面@week的結果從現在開始，使事情變得更加可讀:)

於是，我開始了表的只有一個，想看看一個銷售代表在每個月多少訪問者有：

select rep, 
    , SUM(CASE @week WHEN 1 THEN 1 ELSE 0 END) as Week1 
    , SUM(CASE @week WHEN 2 THEN 1 ELSE 0 END) as Week2 
    , SUM(CASE @week WHEN 3 THEN 1 ELSE 0 END) as Week3 
    , SUM(CASE @week WHEN 4 THEN 1 ELSE 0 END) as Week4 
    , COUNT(*) as Total 
from visitors 
group by rep 

現在，我們得到了這個信息，我們將使用買家相同，然後加入這兩個子查詢的結果如下：

select v.rep 
, v.Week1 , b.Week1 
, v.Week2 , b.Week2 
, v.Week3 , b.Week3 
, v.Week4 , b.Week4 
, v.Total, b.Total 
from (
    select rep, 
     , SUM(CASE @week WHEN 1 THEN 1 ELSE 0 END) as Week1 
     , SUM(CASE @week WHEN 2 THEN 1 ELSE 0 END) as Week2 
     , SUM(CASE @week WHEN 3 THEN 1 ELSE 0 END) as Week3 
     , SUM(CASE @week WHEN 4 THEN 1 ELSE 0 END) as Week4 
     , COUNT(*) as Total 
    from visitors 
    group by rep) as v 
    left join (select rep, 
       , SUM(CASE @week WHEN 1 THEN 1 ELSE 0 END) as Week1 
       , SUM(CASE @week WHEN 2 THEN 1 ELSE 0 END) as Week2 
       , SUM(CASE @week WHEN 3 THEN 1 ELSE 0 END) as Week3 
       , SUM(CASE @week WHEN 4 THEN 1 ELSE 0 END) as Week4 
       , COUNT(*) as Total 
       from visitors 
       group by rep) as b on v.rep = b.rep 

這應該是你在找什麼！

這裏是如上更新您的具體情況相同的代碼：

select v.rep 
    , v.Week1 , b.Week1 
    , v.Week2 , b.Week2 
    , v.Week3 , b.Week3 
    , v.Week4 , b.Week4 
    , v.Total, b.Total 
from (
     select rep 
      , SUM(CASE WEEK(the_date, 5) - 
      WEEK(DATE_SUB(the_date, INTERVAL DAYOFMONTH(the_date) - 1 DAY), 5) + 1 
      WHEN 1 THEN 1 ELSE 0 END) as Week1 
     , SUM(CASE WEEK(the_date, 5) - 
      WEEK(DATE_SUB(the_date, INTERVAL DAYOFMONTH(the_date) - 1 DAY), 5) + 1 
      WHEN 2 THEN 1 ELSE 0 END) as Week2 
     , SUM(CASE WEEK(the_date, 5) - 
     WEEK(DATE_SUB(the_date, INTERVAL DAYOFMONTH(the_date) - 1 DAY), 5) + 1 
      WHEN 3 THEN 1 ELSE 0 END) as Week3 
     , SUM(CASE WEEK(the_date, 5) - 
     WEEK(DATE_SUB(the_date, INTERVAL DAYOFMONTH(the_date) - 1 DAY), 5) + 1 
      WHEN 4 THEN 1 ELSE 0 END) as Week4 
     , COUNT(*) as Total 
     from visitors 
     where sales_rep = '$sales_rep' AND date('Y-m') = $'chosen_month' 
     group by rep) as v 
    left join (
     select rep 
      , SUM(CASE WEEK(the_date, 5) - 
      WEEK(DATE_SUB(the_date, INTERVAL DAYOFMONTH(the_date) - 1 DAY), 5) + 1 
      WHEN 1 THEN 1 ELSE 0 END) as Week1 
     , SUM(CASE WEEK(the_date, 5) - 
      WEEK(DATE_SUB(the_date, INTERVAL DAYOFMONTH(the_date) - 1 DAY), 5) + 1 
      WHEN 2 THEN 1 ELSE 0 END) as Week2 
     , SUM(CASE WEEK(the_date, 5) - 
     WEEK(DATE_SUB(the_date, INTERVAL DAYOFMONTH(the_date) - 1 DAY), 5) + 1 
      WHEN 3 THEN 1 ELSE 0 END) as Week3 
     , SUM(CASE WEEK(the_date, 5) - 
     WEEK(DATE_SUB(the_date, INTERVAL DAYOFMONTH(the_date) - 1 DAY), 5) + 1 
      WHEN 4 THEN 1 ELSE 0 END) as Week4 
     , COUNT(*) as Total 
     from buyers 
     where marketing_type = "URL" AND sales_rep = '$sales_rep' AND date('Y-m') = $'chosen_month' 
     group by rep) as b on v.rep = b.rep